Forty years ago it was difficult to find a prominent American ophthalmologist, or even a professor of ophthalmology, who had any real knowledge of such basic subjects asphysiologic optics or ophthalmic pathology. On the other hand, on the European Continent it was difficult to find any ophthalmologist who did not have suchknowledge. . . . And almost equally as widespread ignorance of physiologic optics also still prevails.
Reference: Verhoeff FH.American ophthalmology during the past century. Arch Ophthalmol. 1948;39:460.